The proceedings of the Third International Dharmakīrti Conference held in Hiroshima in 1997 collect a number of papers devoted to the study of the great seventh-century Buddhist philosopher, Dharmakīrti, and his impacts upon the succeeding generations of both Buddhist and non-Buddhist philosophers in India and Tibet. The Second International Dharmakīrti Conference was held in Vienna, and its proceedings, Studies in the Buddhist Epistemological Tradition, have been published in this same series. The present volume contains the results of the important researches made by the major Dharmakīrtian scholars in the world since the last conference, so that the readers can discover the present state of affairs in the field of Buddhist epistemology and logic. Some papers are concerned with the epistemological topics, such as the notion of perceptibility, and others with the purely logical problems like an empty subject. Some deal with the Buddhist theory of language called apoha in comparison with the views of Nāgārjuna, Bhartṛhari and others, while others are devoted to the ontological questions, such as how to determine the causal relationship. Several papers discuss Dharmakīrti in the light of criticism made by Jaina, Nyāya or Mīṃāṃsā philosophers. And finally the most remarkable feature of the present volume is the increase of number of contributions devoted to the study of Tibetan tradition of Buddhist epistemology and logic which has been developed under the great influence of Dharmakīrti.